Question

Saima wants to put a lace on the edge of a circular table cover of diameter 1.5m. find the length of the lace required and also find its cost if one meter of the lace Costs ₹15. (Take $\pi = 3.14$) ​

Answer 1

Saima wants to put a lace on the edge of a circular table cover of diameter 1.5 m. Find the length of the lace required and also find its cost if one meter of the lace costs ₹ 15. (Take π = 3.14)

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ANSWER:

From the question it is given that,

Diameter of the circular table = 1.5 m

We know that, radius (r) = d/2

= 1.5/2

= 0.75 m

Then,

Circumference of the circle = 2πr

= 2 × 3.14 × 0.75

= 4.71 m

So, the length of lace = 4.71 m

Cost of 1 m lace = ₹ 15 [given]

Cost of 4.71 m lace = ₹ 15 × 4.71

= ₹ 70.65

Step-by-step explanation:

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Answer 2

$\huge\fbox\orange{QUE}{\colorbox{blue}{ST}}\fbox\green{ION}$

Saima wants to put a lace on the edge of a circular table cover of diameter 1.5m. find the length of the lace required and also find its cost if one meter of the lace Costs ₹15. (Take $\pi = 3.14$)

$\huge{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

$\sf\green{Given :}$

➣ Diameter of the circular table cover = 1.5 m

➣ One meter of the lace costs = ₹ 15

$\sf\red{To \: Find :}$

➙ Length of the lace required

➙ Cost of the lace required

$\sf\pink{Solution :}$

➪ Radius of the circular table cover (r) = $\frac{1.5}{2}$

⟼ Circumference of the circular table cover = Length of Lace Required

⟼ Circumference of the circular table cover = 2$\pi$r

⟼ Circumference of the ci circular table cover = 2 × 3.14 × $\frac{1.5}{2}$

⟼ Circumference of the circular table cover = 4.71 m

➤ So, the length of the lace required is 4.71 m.

➪ Cost of 4.71 m lace = Length of the lace required × Cost of lace per meter

⇒ 4.71 × 15

⇒ ₹ 70.65

➦ So, the length of the lace required is 4.71 m and the cost of 4.71 m lace is ₹ 70.65